MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dd848661f56da431f26eeb2d6c05b08e6e6051357f2ad6a4e36e1a55ee3c1f36. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



RemcosRAT


Vendor detections: 9


Intelligence 9 IOCs YARA 8 File information Comments

SHA256 hash: dd848661f56da431f26eeb2d6c05b08e6e6051357f2ad6a4e36e1a55ee3c1f36
SHA3-384 hash: 42846fd616140dcfd7962238658e1609501ff5bb99ffa599d3ad12aaa2beec083827870ab06e0e9a88e3aac9bc87768a
SHA1 hash: c819774f63800c0dbf69bfdfb751cadbf490cf16
MD5 hash: 1e21a0fb84ad71cccfe623fb000d0ebf
humanhash: princess-august-fourteen-echo
File name:1e21a0fb84ad71cccfe623fb000d0ebf.exe
Download: download sample
Signature RemcosRAT
File size:631'808 bytes
First seen:2020-11-17 07:17:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'642 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 6144:UGB1bS6sGEZFu4dttC1zB7GzKKNrty4bl+HuVZqJm3Mf2k1+ZrMBgkSOG9iO2RK:t2fS7WNrty4wHu7dcqrMBgkS9UOIK
Threatray 1'423 similar samples on MalwareBazaar
TLSH C5D4D0CD336B44EBDAA601F47913C16D8733AC68D147E7861871B2AEF6A23A713611D3
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
114
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file
Launching a process
DNS request
Sending a custom TCP request
Reading critical registry keys
Creating a file in the %temp% directory
Deleting a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Unauthorized injection to a system process
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Signature
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Detected Remcos RAT
Drops PE files to the user root directory
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Sigma detected: Remcos
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 318625 Sample: i7ZEgOH6U5.exe Startdate: 17/11/2020 Architecture: WINDOWS Score: 100 48 Malicious sample detected (through community Yara rule) 2->48 50 Detected Remcos RAT 2->50 52 Yara detected Remcos RAT 2->52 54 2 other signatures 2->54 7 i7ZEgOH6U5.exe 1 3 2->7         started        11 browserch.exe 1 2->11         started        13 browserch.exe 2->13         started        process3 file4 32 C:\Users\user\browserch.exe, PE32 7->32 dropped 34 C:\Users\user\browserch.exe:Zone.Identifier, ASCII 7->34 dropped 36 C:\Users\user\AppData\...\i7ZEgOH6U5.exe.log, ASCII 7->36 dropped 60 Drops PE files to the user root directory 7->60 62 Writes to foreign memory regions 7->62 64 Maps a DLL or memory area into another process 7->64 66 Hides that the sample has been downloaded from the Internet (zone.identifier) 7->66 15 RegAsm.exe 2 7->15         started        68 Machine Learning detection for dropped file 11->68 19 RegAsm.exe 11->19         started        21 RegAsm.exe 13->21         started        signatures5 process6 dnsIp7 38 zednet.mooo.com 213.248.112.7, 49701, 49702, 61600 TELIANETTeliaCarrierEU European Union 15->38 40 Contains functionality to steal Chrome passwords or cookies 15->40 42 Contains functionality to capture and log keystrokes 15->42 44 Contains functionality to inject code into remote processes 15->44 46 2 other signatures 15->46 23 RegAsm.exe 13 15->23         started        26 RegAsm.exe 1 15->26         started        28 RegAsm.exe 15->28         started        30 RegAsm.exe 15->30         started        signatures8 process9 signatures10 56 Tries to harvest and steal browser information (history, passwords, etc) 23->56 58 Tries to steal Instant Messenger accounts or passwords 26->58
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Status:
Malicious
First seen:
2020-11-17 07:18:04 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos persistence rat spyware
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Remcos
Malware Config
C2 Extraction:
zednet.mooo.com:61600
Unpacked files
SH256 hash:
a1f03c7d040065f8c8b5073851e5c872f8fc303f590c680603d0a1ad096ea8eb
MD5 hash:
9a52b812260f24121c3d4eef8a03e370
SHA1 hash:
1260d7ffc9566dab56299608bf6a94524711e597
SH256 hash:
50b2c665c665207897e330eebebf8544a5afec543a293787200ec1f1a143ff0c
MD5 hash:
617a21b04f402bbe76f9de381a532210
SHA1 hash:
1b5b3a2ffda560455f3c786dada17d0d5635aa0a
Detections:
win_remcos_g0 win_remcos_auto
SH256 hash:
dd848661f56da431f26eeb2d6c05b08e6e6051357f2ad6a4e36e1a55ee3c1f36
MD5 hash:
1e21a0fb84ad71cccfe623fb000d0ebf
SHA1 hash:
c819774f63800c0dbf69bfdfb751cadbf490cf16
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:ach_RemcosRAT
Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:Keylog_bin_mem
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Remcos
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Rule name:win_remcos_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

RemcosRAT

Executable exe dd848661f56da431f26eeb2d6c05b08e6e6051357f2ad6a4e36e1a55ee3c1f36

(this sample)

  
Delivery method
Distributed via web download

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